Improvement in shoe-nails



UNITEDSTATES HENRY S. OUSHMAN 'AND JASON S. BRIGHAM, OF MILFORD,MASSACHUSETTS,

PATENT Orr-ICEU ASSIGNORS TO SAID UUSHMAN.

IMPROVEMENT IN sHoE-NAlLs.

Specification forming part of Letters atent No. 190,670, dated May 15,1877 3 application filed 'March 9, 1877.

To all whom @t may concern.:-

Be it known that we= HENRY S'. UUSHMAN and JASON S. BRIGHAM, of Milford,ofthe county of Worcester and State of Massachusetts, have invented anewand useful Im.- provement in Shoe-Sole Nails; and doy hereby declare thesame to be described in the following specication and represented in theaccompanying drawings, of which- Figure l is a top view, Fig. 2 a sideview, and Fig. 3 a vtransverse section, of a nail of our improvedconstruction.

It has what we term a checkered shank and a pen-point.7 In other words,the shank A has its indentations aa a arranged init in manner as theseveral dark squares of a chess-board are disposed relatively to eachother, each indentation of each transverse row of such indentationsbeing next to or against a space between two indentations of a nextadjacent transverse row. There is to the shank a series of rows' of'such indentations, each row going transversely around the shank, andhaving its ind'entations at or about equal distances apart, those of onerow being againstV the space between those of the next succeeding row.-Each of the indentations, formed as shown, is rectangular or square in'shape.

The shank may be made cylindrical or prismatic, and be furnished'with ahead, b, or be Without such. I

Instead of making thev point with a single` continuous slope from heelto toe, we construct it with a ridge, as shown at c, the crown w of suchridge being arranged from the toe a distance about one-thirdv of thatbetween the toe and shank. A coneavity, d, is thus formed between theridge and the shank.

This ridge causes the nail, while being driven point foremost against aclinching-plate, to bind or clinch in that part of the point in whichthe concavity d is situated, thereby insurin g a very much betterclinching of the nail, as experience has demonstrated, than can beeffected by a point having one continuous slope.

The toe or front of the nail or clinching 'slope is not at the axis ofthe' nail, but terminates in the side of the nail. By such arrangementof the point, and with the ridge, the clinching is effected to very muchbetter advantage than is the case when the nail has its point at itsaxis, and also has a notch in the shank, and arranged immediately nextthe heel or base of the point.

By arranging the indentations in the shank in the manner described, thenail not only drives easier, but is not so liable to turn laterallyinthe process of driving it as it is when it is indented on two oppositesides only, and theindentations of one range are, respectively, oppositethose of the other. ln our method of arranging the indentations, thoseof each range are between those of each next range, and this followswith each Atransverse as well as witheach longitudinal range of them.

We are aware that it is not new to provide the shank of a shoe-sole nailwith parallel ranges of notches extending lengthwise ot' it, and havingbetween them continuous ribs or spaces uninterrupted, or without anynotches, from head to point of the nail, such being as shown in theUnited States Patents No. 147,430 and 169,838. With indeutationsarranged in the checkered manner as shown and described, there are nosuch continuous ribs, therebeing in lieu thereof ranges of indentations,which, when the nail is in a sole, receive the leather, and thus notonly hold the nail better than continuous ribs, but operate to betteradvantage in preventing water from passing through the nail-holes of thesole when the shoe may be in use.

We have found that with our method of indenting the nail it will verystrongly maintain its hold in the sole, especially in the parts thereofwhich are bent the most while the shoe may be in use.

- We claim- The shoe-sole nail having the shank indented or cellulated,in the manner as represented, and provided with a point and aridge tothe clinching slope thereof, all arranged as specified.

HENRY S. GUSHMAN.

JASON S. BRIGHAM.

Witnesses:

J AMES R. DAVIS, 'WARREN P. HANCOCK.

